Tonight marks Gal Gadot's very first Oscars—and she certainly didn't fail to make a striking first impression. The Wonder Woman star took her first walk on the Academy Awards red carpet in a metallic silver Givenchy gown, but it wasn't just the sequined number that boasted eye-catching sparkle. To finish off her look, Gadot wore a special showstopping piece from Tiffany and Co.'s Blue Book collection. Dubbed the "Blue Ice," the Art Deco–inspired necklace boasts 17 aquamarines totaling 61 carats and more than a thousand diamonds—950 round diamond melee stones and 85 custom-cut baguettes. The statement piece required three master jewelers, three setters, and four polishers to create. Vogue reports that when Gadot tried on the necklace during her fitting, she paired it with jeans and a T-shirt. "As a longtime fan of the brand, it means so much to get to wear this special custom piece," she said. "I am thrilled to be part of an amazing legacy of inspiring women."